500/9 - 500/9 double nightlatch with cylinder key lock-back

Application

Upright mortice locking latch with cylinder outside and
lock-back inside. For use when automatic deadlocking is required
during controlled periods. Internal cylinder is used for lock-back
which is therefore fully controlled. Available with either 50mm or
70mm backset. Can be converted to 500/4 with snib lock-back.

Finish

Product has been successfully type-tested for conformity to BS
EN 12209.
Regular audit testing is undertaken.

Standards

Split follower locksSplit follower locks provide different functions on the
inside and outside, and the internal handle follower mechanism is
not reversible. Therefore when specifying these locks both the door
handing AND whether the door opens inwards or outwards MUST be
stated.

Spindles
Special split spindles must be used where lever handles are fitted
to ASSA Split Follower Locks. ASSA lever handles are recommended.
If other lever handles are used, contact us for advice.

Please note that the exact type of spindle to specify varies
depending on the lever handle range to be used. See Door Furniture
section for details.